Vegetarian Pozole Verde (Hominy Soup)
1 bunch arugula leaves, chopped 1 pound tomatillos - husked, cored, chopped 10 leaves Boston lettuce, chopped 10 leaves fresh spinach, chopped 10 serrano peppers, chopped 2 (29 ounce) cans white hominy, drained and r… 2 quarts vegetable stock, or more as needed 8 ounces raw shelled pumpkin seeds salt and ground black pepper to taste ¼ cup chopped fresh cilantro leaves ¼ cup chopped fresh parsley ½ cup vegetable oil, divided ½ pound dried pinto beans